传输线中高速信号反射建模分析与优化  

Modelling analysis and optimisation of high-speed signal reflection in transmission lines

作　　者：陈章进[1,2] 王文磊 季渊[1,3] 黄舒平[1,3] CHEN Zhangjin;WANG Wenlei;JI Yuan;HUANG Shuping(Microelectronic Research and Development Center,Shanghai University,Shanghai 200072,China;Computer Center,Shanghai University,Shanghai 200072,China;Shanghai Lumicore Microelectronics Ltd.,Shanghai 200072,China)

机构地区：[1]上海大学微电子研究与开发中心,上海200072 [2]上海大学计算中心,上海200072 [3]上海昀光微电子有限公司,上海200072

出　　处：《上海大学学报（自然科学版）》2021年第3期503-513,共11页Journal of Shanghai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(61674100,61774101)。

摘　　要：单向点对点传输线是目前应用最广泛也是最基本的传输线类型.传统单一建模分析方法已不能完全满足对高速信号的分析.对传输线中高速信号反射现象结合集总模型与分布式模型进行建模,分析了线长、过孔对信号反射的影响;对解决信号反射的阻抗匹配方案进行建模仿真,分析匹配电阻、分支线长、过孔以及端接电压对信号反射的影响,通过理论分析与仿真验证证明设计方案的可行性与实用性.所提出的分析设计方案已应用到多个产品的设计中.The point-to-point transmission line is currently the most widely used and basic type of transmission line.Traditional modelling analysis methods are not fully applicable to the analysis of high-speed transmission lines.In this study,the signal reflection phenomenon in point-to-point transmission lines was modelled and analysed,and the effects of the line length and via on the signal reflection in transmission lines were analyzed.Detailed modelling of the impedance matching scheme for the signal reflection and analysis of matching resistors,branch line lengths,vias,and termination voltages in impedance matching was performed.Furthermore,the feasibility of the analytical method was verified through theoretical analysis.The analytical design scheme has been applied to the design of multiple products.

关 键 词：信号完整性 反射 高速传输 分布式模型 

分 类 号：TN41[电子电信—微电子学与固体电子学]